Structured JSON output from Claude: tool-use-as-JSON, schema, parsing, partial recovery. Triggers: JSON mode, structured output, schema validation, JSON parsing.
Multi-model pipelines (Haiku/Sonnet/Opus): cost routing, escalation, fallback chains. Triggers: model routing, Haiku, Sonnet, Opus, escalation, fallback chain.
Anthropic API prompt caching: TTL, breakpoints, stacking, invalidation, hit rate. Triggers: prompt caching, cache_control, cache breakpoint, cache TTL, hit rate.
Creates new skills from templates via guided workflow. Triggers: new skill, create skill, skill scaffold, skill template.
Mandatory engineering, security, testing, git, performance, quality, and response rules. Claude MUST load this skill for every technical, coding, debugging, review, architecture, DevOps, data, or file-editing task in Chat or Cowork.
REST/GraphQL API design: naming, versioning, pagination, idempotency, OpenAPI. Triggers: API design, REST, GraphQL, OpenAPI, Swagger, idempotency, rate limit.
Direct technical voice for docs, README, user-facing text. Concise/strict modes. Triggers: documentation, README, content, output-mode, voice, prose style.
Multi-source web research methodology: retrieve-vs-answer gate, complexity-scaled search budget, query craft, primary-source preference, source-conflict skepticism, adversarial verification, attribution-without-reproduction. Triggers: deep research, multi-source, web research, synthesize sources, cross-reference, fact synthesis, source verification.